not sure of the price difference but check out the Tru Glo, Archer's Choice Rangerover...it's a lot like the HHA...I really didn't know about the HHA when I bought my Tru Glo but I like it a lot...same concept, easy to sight in and once sighted in very easy to read the tape and adjust before a shot. Cost around $125...also once you sight in at 20, 30 and 40 you can match the correct pr-printed tape to your 20-40 marks and the rest (50, 60 etc. are are ready calculated...not a huge deal but would have been nice to have known when I was sighting in at 50.